Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: ernie_jr on January 25, 2015, 07:40:36 am
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Morning all, I need some help identifying some mica caps I aquired. they are mustard in color and say 500v (500 volts), then say only 1n o j (or a "3")
Thanks for the hlep,
Ernie
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Do you have a source of stable, low a.c. voltage?
It might be easier to do a simple test by connecting the cap in series with a resistor across a known a.c. voltage, and calculating the value of capacitance (if that's what you wanted to know).
If you were trying to determine the brand of the cap, a picture would probably yield more responses.